Leak with INIT_AppleEvents on Mac

tools/valgrind/memcheck/suppressions_mac.txt

 # There are three kinds of suppressions in this file:
 # 1. Third party stuff we have no control over.
 #
 # 2. Intentional unit test errors, stuff that is somehow a false positive
 # in our own code, or stuff that is so trivial it's not worth fixing.
 #
 # 3. Suppressions for real chromium bugs that are not yet fixed.
 # These should all be in chromium's bug tracking system.
 # Periodically we should sweep this file and the bug tracker clean by
 # running overnight and removing outdated bugs/suppressions.
@@ skipping 1786 matching lines @@
    fun:_ZN12_GLOBAL__N_121SearchPortForPropertyEjPK10__CFString
    fun:_ZN12_GLOBAL__N_123CollectPCIVideoCardInfoEP7GPUInfo
    fun:_ZN18gpu_info_collector30CollectPreliminaryGraphicsInfoEP7GPUInfo
    fun:_ZN14GpuDataManagerC2Ev
    fun:_ZN14GpuDataManagerC1Ev
    fun:_ZN22DefaultSingletonTraitsI14GpuDataManagerE3NewEv
    fun:_ZN9SingletonI14GpuDataManager22DefaultSingletonTraitsIS0_ES0_E3getEv
    fun:_ZN14GpuDataManager11GetInstanceEv
    fun:_ZN19GpuBlacklistUpdater17SetupOnFileThreadEv
 }
+{
+   bug_91892
+   Memcheck:Leak
+   fun:_Znw*
+   fun:sendSimpleEventToSelf
+   fun:aeInitializeFromHIToolbox
+   fun:INIT_AppleEvents
+   fun:_FirstEventTime
+   fun:RunCurrentEventLoopInMode
+   fun:ReceiveNextEventCommon
+   fun:BlockUntilNextEventMatchingListInMode
+   fun:_DPSNextEvent
+   fun:-[NSApplication nextEventMatchingMask:untilDate:inMode:dequeue:]
+   fun:-[NSApplication run]
+   fun:_ZN4base24MessagePumpNSApplication5DoRunEPNS_11MessagePump8DelegateE
+   fun:_ZN4base24MessagePumpCFRunLoopBase3RunEPNS_11MessagePump8DelegateE
+   fun:_ZN11MessageLoop11RunInternalEv
+   fun:_ZN11MessageLoop10RunHandlerEv
+   fun:_ZN11MessageLoop13RunAllPendingEv
+   fun:_ZN20InProcessBrowserTest23RunTestOnMainThreadLoopEv
+}